Tuner Pin Locator Instuction
For Schaller, Sperzel and Fender guitar tuning machines
This hard coated aluminum jig lets you drill an accurately located pin hole in the back of the peghead, for a left or right side tuning machine, using your hand drill. The Tuner Pin Locator keeps the drill bit perpendicular to the peghead for accuracy.
It will location:
- Schaller / Fender two pin (top row of three - outer two holes) #38 drill size
- Sperzel single pin ( top row of three - middle single silver rimmed hole) #38 drill size
- Schaller M6 two pin (bottom row of three - outer two holes) 3/32" or #42 drill size
- Schaller / Fender single pin (bottom row of three - middle single hole) #38 drill size
The Tuner Pin Locator fits a 3/8" dia. peghole, but will also work in a 10 millimeter dia. peghole by using the self centering cone washer.
Use a #38 drill bit (.101) for all holes except for the Schaller M6 two pin that requires a 3/32" or #42 drill bit (.093) and adjust the depth to 11/16".
This is measured from the outer bottom cutting edge of drill bit to its stopping point. Mark your drill bit with tape or use stop collar.
(6-in-line / measured from side edge of peghead)
Once the Tuner Pin Locator is lined up by using a straight edge, ruler or its built in center point, make sure the thumb screw is tightened against the cone washer securing the hard coated metal block to the peghead.